.page-about {
  position: relative;
  isolation: isolate;
  background: var(--bg-deep);
  overflow: hidden;
  --about-glow-purple: rgba(155, 92, 246, 0.16);
  --about-glow-pink: rgba(255, 61, 129, 0.12);
  --about-glow-blue: rgba(0, 229, 255, 0.08);
  --about-rail-line: rgba(155, 92, 246, 0.22);
  --about-card-border: rgba(155, 92, 246, 0.14);
  --about-panel-bg: rgba(26, 20, 35, 0.86);
}

.page-about .container {
  position: relative;
  z-index: 1;
}

.page-about .about-hero {
  position: relative;
  padding: 3rem 0 3.5rem;
  background:
    radial-gradient(ellipse 90% 70% at 78% -10%, var(--about-glow-purple) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 8% 12%, var(--about-glow-blue) 0%, transparent 60%),
    linear-gradient(165deg, transparent 62%, var(--about-glow-pink) 62.5%, transparent 63%),
    var(--bg-deep);
  border-bottom: 1px solid var(--about-rail-line);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -120px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(255, 61, 129, 0.1), transparent 68%);
  pointer-events: none;
}

.page-about .about-breadcrumb {
  margin-bottom: 2rem;
}

.page-about .about-kicker {
  color: var(--neon-blue);
  margin-bottom: 1.25rem;
  letter-spacing: 0.28em;
}

.page-about .page-hero-title {
  margin: 0 0 1.25rem;
  max-width: 15em;
}

.page-about .page-hero-lead {
  max-width: 34em;
  margin: 0;
  color: var(--text-dim);
  font-size: 1.06rem;
  line-height: 1.8;
}

.page-about .about-section {
  padding: 3.5rem 0;
}

.page-about .about-section-head {
  margin-bottom: 2.75rem;
  max-width: 42em;
}

.page-about .about-section-head .kicker {
  color: var(--neon-blue);
  margin-bottom: 0.85rem;
}

.page-about .about-section-head .section-title {
  margin-bottom: 1rem;
}

.page-about .about-section-head p:last-child {
  margin-bottom: 0;
}

.page-about .about-section-head .about-milestones-lead,
.page-about .about-section-head .about-system-lead {
  color: var(--text-dim);
  line-height: 1.7;
}

.page-about .about-origin {
  background:
    linear-gradient(180deg, transparent 0%, rgba(155, 92, 246, 0.03) 45%, transparent 100%),
    var(--bg-deep);
}

.page-about .about-origin-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.page-about .about-origin-copy .kicker {
  color: var(--neon-purple);
  margin-bottom: 0.85rem;
}

.page-about .about-origin-copy .section-title {
  margin-bottom: 1.25rem;
}

.page-about .about-origin-lead {
  font-size: 1.08rem;
  line-height: 1.75;
  margin: 0 0 1rem;
  color: var(--text-main);
}

.page-about .about-origin-copy p:last-child {
  margin-bottom: 0;
}

.page-about .about-origin-copy p:not(.about-origin-lead) {
  color: var(--text-dim);
  line-height: 1.7;
  margin: 0 0 1rem;
}

.page-about .about-origin-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 0 0 1px var(--about-card-border),
    0 18px 48px rgba(0, 0, 0, 0.3);
}

.page-about .about-origin-figure img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-milestones {
  background:
    radial-gradient(ellipse 85% 55% at 50% 10%, var(--about-glow-purple) 0%, transparent 70%),
    linear-gradient(180deg, rgba(26, 20, 35, 0.62), transparent 42%),
    var(--bg-deep);
  border-top: 1px solid var(--about-rail-line);
  border-bottom: 1px solid var(--about-rail-line);
}

.page-about .about-milestones .kicker {
  color: var(--neon-purple);
}

.page-about .about-timeline {
  position: relative;
  list-style: none;
  margin: 0 0 3rem;
  padding: 0;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--neon-purple), var(--neon-pink) 68%, rgba(255, 61, 129, 0.08));
  border-radius: 2px;
}

.page-about .about-timeline-item {
  position: relative;
  padding-left: 2.25rem;
  margin-bottom: 1.625rem;
}

.page-about .about-timeline-item:last-child {
  margin-bottom: 0;
}

.page-about .about-timeline-dot {
  position: absolute;
  left: 0;
  top: 1.25rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--neon-purple);
  box-shadow:
    0 0 0 4px rgba(155, 92, 246, 0.16),
    0 0 18px rgba(155, 92, 246, 0.45);
  transform: translateX(-7px);
}

.page-about .about-timeline-content {
  position: relative;
  padding: 1.5rem 1.375rem 1.25rem;
  background: var(--about-panel-bg);
  border: 1px solid var(--about-card-border);
  border-radius: var(--radius-md);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.025),
    0 10px 30px rgba(0, 0, 0, 0.28);
  transition: transform 300ms var(--ease), border-color 300ms var(--ease), box-shadow 300ms var(--ease);
}

.page-about .about-timeline-content::before {
  content: "";
  position: absolute;
  top: 1.5rem;
  left: 0;
  width: 3px;
  height: 2.4rem;
  background: var(--grad-main);
  border-radius: 0 3px 3px 0;
  opacity: 0.85;
}

.page-about .about-timeline-content .badge {
  display: inline-block;
  margin-bottom: 0.8rem;
}

.page-about .about-timeline-content h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 0 0 0.5rem;
  color: var(--text-main);
}

.page-about .about-timeline-content p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-dim);
}

.page-about .about-timeline-item:hover .about-timeline-content {
  transform: translateY(-3px);
  border-color: rgba(155, 92, 246, 0.36);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 12px 40px rgba(0, 0, 0, 0.32),
    0 0 28px rgba(155, 92, 246, 0.05);
}

.page-about .about-chart {
  margin: 3rem 0 0;
  position: relative;
  border-radius: var(--radius-lg);
  padding: 1rem 1rem 0;
  background: rgba(13, 11, 20, 0.5);
  border: 1px solid var(--about-card-border);
  box-shadow:
    inset 0 0 40px rgba(0, 0, 0, 0.16),
    0 18px 44px rgba(0, 0, 0, 0.24);
}

.page-about .about-chart img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: calc(var(--radius-lg) - 8px);
}

.page-about .about-chart figcaption {
  padding: 0.9rem 0.35rem 1rem;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.page-about .about-system {
  background:
    repeating-linear-gradient(135deg, transparent 0 16px, rgba(255, 61, 129, 0.016) 16px 17px),
    radial-gradient(ellipse 75% 60% at 10% 20%, var(--about-glow-blue) 0%, transparent 60%),
    var(--bg-deep);
}

.page-about .about-system .kicker {
  color: var(--neon-blue);
}

.page-about .about-system-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 2.25rem;
}

.page-about .about-system-card {
  position: relative;
  padding: 1.85rem 1.5rem 1.5rem;
  background: var(--about-panel-bg);
  border: 1px solid var(--about-card-border);
  border-radius: var(--radius-md);
  box-shadow:
    inset 0 0 24px rgba(0, 0, 0, 0.14),
    0 10px 28px rgba(0, 0, 0, 0.22);
  overflow: hidden;
  transition: transform 300ms var(--ease), border-color 300ms var(--ease), box-shadow 300ms var(--ease);
}

.page-about .about-system-card::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 130px;
  height: 130px;
  background: radial-gradient(circle, rgba(155, 92, 246, 0.12), transparent 70%);
  pointer-events: none;
}

.page-about .about-system-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow:
    inset 0 0 24px rgba(0, 0, 0, 0.12),
    0 14px 38px rgba(0, 0, 0, 0.26),
    0 0 30px rgba(0, 229, 255, 0.04);
}

.page-about .about-system-index {
  position: absolute;
  top: 1.2rem;
  right: 1.25rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: rgba(155, 92, 246, 0.3);
  letter-spacing: 0.02em;
}

.page-about .about-system-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 0.65rem;
  color: var(--text-main);
  letter-spacing: 0.02em;
}

.page-about .about-system-num {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 1.4rem + 1.6vw, 2.6rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 0.7rem;
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.page-about .about-system-card p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--text-dim);
}

.page-about .about-system-note {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  background: rgba(0, 229, 255, 0.035);
  border: 1px solid rgba(0, 229, 255, 0.13);
}

.page-about .about-system-note p {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-about .about-team {
  background:
    radial-gradient(ellipse 70% 55% at 88% 16%, var(--about-glow-pink) 0%, transparent 62%),
    linear-gradient(180deg, transparent, rgba(155, 92, 246, 0.03)),
    var(--bg-deep);
}

.page-about .about-team .kicker {
  color: var(--neon-pink);
}

.page-about .about-team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 3rem;
}

.page-about .about-team-copy .section-title {
  margin-bottom: 1.25rem;
}

.page-about .about-team-copy p {
  margin: 0 0 1rem;
  color: var(--text-dim);
  line-height: 1.72;
}

.page-about .about-team-copy p:last-child {
  margin-bottom: 0;
}

.page-about .about-team-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 0 0 1px var(--about-card-border),
    0 18px 44px rgba(0, 0, 0, 0.28);
}

.page-about .about-team-figure img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-values {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-about .about-value-item {
  position: relative;
  padding: 1.6rem 1.5rem 1.4rem;
  background: rgba(26, 20, 35, 0.58);
  border: 1px solid var(--about-card-border);
  border-radius: var(--radius-md);
  transition: background 300ms var(--ease), border-color 300ms var(--ease), transform 300ms var(--ease);
}

.page-about .about-value-item:hover {
  background: rgba(26, 20, 35, 0.88);
  border-color: rgba(255, 61, 129, 0.28);
  transform: translateY(-3px);
}

.page-about .about-value-num {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  color: var(--neon-blue);
  margin-bottom: 0.85rem;
}

.page-about .about-value-item h3 {
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--text-main);
}

.page-about .about-value-item p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--text-dim);
}

.page-about .about-copyright {
  background:
    radial-gradient(ellipse 80% 60% at 50% 20%, var(--about-glow-purple) 0%, transparent 65%),
    linear-gradient(180deg, rgba(26, 20, 35, 0.7), rgba(13, 11, 20, 0.6)),
    var(--bg-deep);
  border-top: 1px solid var(--about-rail-line);
}

.page-about .about-copyright .kicker {
  color: var(--neon-purple);
  margin-bottom: 0.85rem;
}

.page-about .about-copyright-inner {
  max-width: 46rem;
  margin: 0 auto;
  padding: 2rem 1.75rem;
  background: rgba(18, 13, 28, 0.74);
  border: 1px solid var(--about-card-border);
  border-radius: var(--radius-lg);
  box-shadow:
    inset 0 0 40px rgba(0, 0, 0, 0.24),
    0 16px 44px rgba(0, 0, 0, 0.24);
}

.page-about .about-copyright-inner .section-title {
  margin-bottom: 1.25rem;
}

.page-about .about-copyright-inner p {
  margin: 0 0 1rem;
  color: var(--text-dim);
  line-height: 1.72;
}

.page-about .about-copyright-inner p:last-of-type {
  margin-bottom: 1.75rem;
}

.page-about .about-copyright-link {
  width: 100%;
  justify-content: center;
}

@media (min-width: 680px) {
  .page-about .about-system-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  .page-about .about-values {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-value-item:last-child {
    grid-column: span 2;
  }

  .page-about .about-copyright-link {
    width: auto;
    justify-content: flex-start;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 4.5rem 0 6rem;
  }

  .page-about .about-hero::before {
    content: "";
    position: absolute;
    right: 5%;
    top: 50%;
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-blue), transparent);
    opacity: 0.25;
    pointer-events: none;
  }

  .page-about .about-section {
    padding: 5.5rem 0;
  }

  .page-about .about-origin-grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 4rem;
    align-items: center;
  }

  .page-about .about-origin-copy {
    order: 1;
  }

  .page-about .about-origin-figure {
    order: 2;
  }

  .page-about .about-origin-figure img {
    aspect-ratio: 3 / 2;
  }

  .page-about .about-section-head {
    margin-bottom: 3.5rem;
  }

  .page-about .about-timeline {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.25rem 3.5rem;
    margin-bottom: 3.75rem;
  }

  .page-about .about-timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .about-timeline-item {
    padding-left: 0;
    margin-bottom: 0;
  }

  .page-about .about-timeline-item:nth-child(odd) {
    grid-column: 1;
    padding-right: 2.5rem;
    text-align: right;
  }

  .page-about .about-timeline-item:nth-child(even) {
    grid-column: 2;
    padding-left: 2.5rem;
    text-align: left;
  }

  .page-about .about-timeline-dot {
    left: auto;
    right: -10px;
    top: 1.55rem;
    transform: none;
  }

  .page-about .about-timeline-item:nth-child(even) .about-timeline-dot {
    right: auto;
    left: -10px;
  }

  .page-about .about-timeline-content {
    text-align: left;
  }

  .page-about .about-timeline-content::before {
    left: 0;
  }

  .page-about .about-chart {
    padding: 1.25rem 1.25rem 0;
  }

  .page-about .about-system-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
  }

  .page-about .about-system-note {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 1.75rem 2rem;
  }

  .page-about .about-system-note p {
    max-width: 36em;
  }

  .page-about .about-team-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 4rem;
  }

  .page-about .about-team-figure img {
    aspect-ratio: 5 / 3;
  }

  .page-about .about-values {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }

  .page-about .about-value-item:last-child {
    grid-column: auto;
  }

  .page-about .about-team-copy {
    padding-right: 2rem;
  }

  .page-about .about-copyright-inner {
    padding: 3.25rem 3.5rem;
  }
}